FemtoMAX performanceExpected 2018Achieved April 12, 2016
Energy range



1.8 -20 keV (0.6 – 6.5 Å)
Photon source In-vacuum undulator U15U52 surplus from MAX II
Monochromator Double crystal monochromator with Si(111) InSb(111) crystals.
Multi-layer mirrors
Photons per pulse 1% BW>1·10⁷ at 6 keV>1·10⁵ at 2.5 keV
Repetition rate100 Hz2 Hz (radiation safety requirement permit lacking to increase)
Harmonic content1:1000
BandwidthSi ∆E/E≈2·10-4 (2.5-20 keV)
InSb ∆E/E≈4·10⁻⁴ (1.8-20 keV)
ML ∆E/E=0.01 (1.8-20 keV)
Monochomator throughput @ 5 keV>70% crystal >50% ML
OpticsUnfocused/ Rhodium coated Si-mirror, Be-lenses, Harmonic rejection mirror, X-ray prism
PolarizationLinear
Pulse duration<100 fs
Synchronisation<1 ps (jitter compensation gives <200 fs temporal resolution)
Spot size on sample1 x 1 mm² unfocused
40 x 40 µm² focused
40 x 10 µm² (HxV) focused with cylindrical Be-lenses
EquipmentUltrafast laser (10 mJ @800 nm, 1 mJ at 1200 nm, 0.01 mJ at 10 000 nm)
Kappa-circle goniometer, Robot detector holder
Vacuum GIXS
Access to ICE end station for AoM
Environment for liquid jets
Ultrafast laser (10 mJ @800 nm, 1 mJ at 1200 nm, 0.01 mJ at 10 000 nm)
Kappa-circle goniometer, Robot detector holder
Vacuum GIXS